Relative displacement control apparatus
    1.
    发明授权
    Relative displacement control apparatus 失效
    相对位移控制装置

    公开(公告)号:US4866271A

    公开(公告)日:1989-09-12

    申请号:US71994

    申请日:1987-07-10

    摘要: A relative displacement control apparatus provides both coarse and extremely fine precise control over displacements between a sample and a detecting probe as required, e.g. in operations of optical instruments, analyzing instruments and scanning tunneling microscopes. This precise fine displacement is produced through a double-lever-action which is created substantially by means of an arm assembly preferably with a piezoelectric drive for precise displacement control, a support pivotally holding the arm assembly, a rigid arm fixed solidly atop the support and a pointed stop or "foot" fixed in the proximity of the free end of the rigid arm.

    摘要翻译: 相对位移控制装置根据需要提供样品和检测探针之间的位移的粗略和非常精细的精确控制。 在光学仪器,分析仪器和扫描隧道显微镜的操作中。 这种精确的精细位移通过双杠杆动作产生,该双杠杆动作基本上通过臂组件产生,优选地具有用于精确位移控制的压电驱动器,枢轴地保持臂组件的支撑件,固定地固定在支撑件上方的刚性臂 固定在刚性臂的自由端附近的尖头止动块或“脚”。

    Sampling scanning probe microscope and sampling method thereof
    4.
    发明授权
    Sampling scanning probe microscope and sampling method thereof 失效
    采样扫描探针显微镜及其取样方法

    公开(公告)号:US6094972A

    公开(公告)日:2000-08-01

    申请号:US123146

    申请日:1998-07-27

    摘要: An xy scanning unit produces a scanning signal along an x-direction and a scanning signal along a y-direction, which are determined by a contour of a sample to be monitored, scanning time of the x-direction, and a pixel number of the x-direction, supplied from a CPU. Then, the xy scanning unit outputs these scanning signals along the x-direction and the y-direction to a piezoelectric scanning apparatus. On the other hand, a second oscillator outputs a sine wave signal having a frequency determined by the scanning time of the x-direction and the pixel number of the x-direction to a second piezoelectric plate. A sample/hold circuit holds observation data of a probe at such timing after preselected time has passed since the output of the second oscillator becomes maximum, and then outputs the held observation data to a differential amplifier and a P.I control system. An output signal Q of the P.I control system is applied to a z-fine-moving electrode of the piezoelectric scanning apparatus, and also is converted into a digital signal by an A/D converter. This digital signal is stored into a memory in a sampling manner.

    摘要翻译: xy扫描单元产生沿着x方向的扫描信号和沿着y方向的扫描信号,其由待监视的样本的轮廓,x方向的扫描时间和x方向的像素数确定 x方向,由CPU提供。 然后,xy扫描单元将这些扫描信号沿x方向和y方向输出到压电扫描装置。 另一方面,第二振荡器输出具有由x方向的扫描时间和x方向的像素数确定的频率的正弦波信号到第二压电板。 采样/保持电路在从第二振荡器的输出变为最大之后经过预选时间之后的这样的定时保持探测器的观测数据,然后将保持的观测数据输出到差分放大器和P.I控制系统。 P.I控制系统的输出信号Q被施加到压电扫描装置的z-微细电极上,并且还通过A / D转换器转换成数字信号。 该数字信号以采样方式存储到存储器中。